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US 12,588,938 B2Granted
Combination probe for cryoablation and thermal ablation and related methods
AssigneeVarian Medical Systems, Inc.
InventorsHongxuan Zhang, Vineel Vallapureddy, Ryan Medema, Sean Doll, Elizabeth Campo, Kenneth Zapalac
Life of this patent
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Abstract
A combination ablation probe includes a shell configured to be positioned at a target tissue in a patient and a conduit positioned inside the shell. The conduit is configured to supply a cryo-fluid toward a tip of the probe. The probe also includes a heater positioned radially outward of the conduit in the shell and at least one heat transfer element in thermal communication with the heater and the shell.
Claims20
An ablation probe comprising:
- a shell configured to be positioned at a target tissue in a patient;
- a conduit positioned inside the shell, the conduit configured to supply a cryo-fluid toward a tip;
- a heater positioned radially outward of the conduit in the shell;
- and
- at least one heat transfer element in thermal communication with the heater and the shell and contacting the heater and the shell.
2 more elements
An ablation probe comprising:
- an outer shell;
- an inner conduit axially aligned with the outer shell and positioned radially inside the shell;
- a first annular heat transfer element positioned at a first axial location, the first annular heat transfer element having an outer profile comprising contacting portions that contact an inner surface of the outer shell and non-contacting portions that are spaced apart from the inner surface of the outer shell;
- a second annular heat transfer element positioned at a second axial location, the second annular heat transfer element oriented generally parallel to the first annular heat transfer element;
- and
- a heater positioned inside the shell in contact with the first annular heat transfer element and the second heat transfer element.
3 more elements
Dependencies are inferred from the claim text.